A072825 Numbers k such that k^2 - 1 is a highly composite number.

5, 7, 11, 19, 29, 41, 71, 4159

Offset

1,1

Comments

All are primes so far.

Links

Table of n, a(n) for n=1..8.

Crossrefs

Cf. A002182.

Sequence in context: A341215 A136086 A182121 * A045440 A023235 A118918

Adjacent sequences: A072822 A072823 A072824 * A072826 A072827 A072828

Keyword

nonn,more,hard

Author

Shyam Sunder Gupta, Jul 21 2002

Extensions

Edited by Robert G. Wilson v, Jul 24 2002

Status

approved